Boiler cleaner



Aug. 11, 1931. N. 1.. sNow 1,813,965

BOILER CLEANER Filed Oct. 15, 1924 2 Sheets-Sheet l INVENTOR. Meme/v 4. 50 014 A TTORNE Y5 Apg. 11, 1931.

I N. L. sNow BOILER CLEANER Fil ed Oct. 13, 1924 2 Sheets-Sheet 2 v INVENTOR. //ae/%4WL. 5N0

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ATTORNEY-5 Patented Aug. 11, 1931 UNITED STATES ,PA'TENT OFFICE NORMAN L. SNOW, OF DETROIT, MICHIGAN, ASSIGNOR TO DIAMOND POWER SPECIALTY CORPORATION, 013 DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN BOILER CLEANER Application filed October 13, 1924. Serial No. 743,495.

The invention relates to boiler cleaners and has among its objects to provide an improved means for controlling the cleaner element and cleaning fluid valve.

Referring to the drawings:

Fig. 1 ,is an elevational view showing one form of my invention, and

Fig. 2 is a similar view illustrating a modified form of my invention.

In the drawings, reference character indicates a boiler cleaner blower head provided with a rotatable blower cleaner element 11, the latter extending through the boiler wall 12 for discharging cleaning fluid through nozzles or the like adjacent the boiler tubes and other parts of the boiler in accordance with the usual practice.

Cleaning fluid, such as steam, air, etc., is supplied at 1-3 from a suitable source where its passage to the gooseneck 14 and thence to blower element 11 is controlled by a valve 15 normally seated at 16. The valve 15 is provided with a stem 17 having its upper end threaded at 18 and this stem is slidable in a bearing bracket 19. The stem 17 is also slotted at 20 for engagement with a pin 21.

A pinion 22 is bored and threaded for engagement with the threaded portion 18 of valve stem 17.

Supported within bearings provided by the brackets 23 and 24 is a shaft 25, the latter having a freely rotative bearing in the bracket 23 and being threaded at 26 for engagement with the bracket 24:. Keyed to shaft 25 is a chain sheave 26 and a pinion 27, the latter meshing at times with a gear 28 freely rotatrable on the blower element 11. r The gear 28 is mitred at 29 for driving the pinion 22.

Keyed to the blower element is a gear 80 also adapted to mesh at times with pinion 27. The gear 30 may be provided with a lug or projection 31 adapted to contact with the bracket 24 to prevent further rotation of element 11 after a predetermined arc of rotation of the gear 30.

In operation with the parts positioned as in Fig. 1, shaft 25 is rotated by pulling a chain (not shown) fitting in sheave 26 in the usual manner. Rotation of shaft 25 causes pinion 27 to rotate gear 28, the latter rotating pinion 22. By reason of the pin 21 engaging the slot 20 the valve stem 17 is moved as valve 15 is being unseated, to engage the gear 30. By continuing the rotation of sheave 26 pinion 27 will rotate the gear 30 and the blower element 11 to direct the discharge nozzles of the latter through the desired arc. The are of blowing may be determined by the lug 31 striking bracket 24. Reversing the direction of rotation of sheave 26 will restore the parts to their original position, again seating valve 15.

It is readily apparent that by varying the width of gears 27, 28 and 30, or the space between gears 28 and 30, any desired relation may be obtained in the timing of the two operations, i. e., unseating the valve and rotating the blower element. If the space between gears 28 and 30 is greater than the width of the pinion 27 rotation of the blower element will not commence until the move ment of gear 28 has entirely ceased. If the space between gears 28 and 30 is less than the width of pinion 27 the operation of gears 28 and 30 would overlap, i. e., the blower element would start its rotation before the valve was entirely unseated. The same variations 1 mounted on the blower element 11 and the latter being keyed to the blower element. The drum 28 is mitred at 29 for engagement with the pinion 22. The drums 28 and 30' are adapted to be actuated by a hand chain 35 which operates in the spiral grooves of the drums in the usual manner of operating chain sheaves.

In operation the drum 28' is first actuated by the hand chain to rotate pinion 22 and unseat the valve as explained above. The hand chain will be fed along the spiral grooves of drum 2-8 as the latter is rotated and will thus automatically feed itself horizontally in the direction of the axis of the blower element to actuate the drum 30 and the blower element 11. The stop 31 for determining the arc of rotation of the blower element operates as in Fig. 1. By making the surface of contact of the drums 28 and 30 smooth, the chain after having fully opened the valve will then feed from drum 2.8 to drum 30 when rotation of the blower element will take place.

What I claim as my invention is:

1. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a member adapted to control said valve, a second member adapted to rotate the blower element, means including a flexible actuating element adapted to be successively moved into actuating engagement with the said members for causing the valve and blower element to function, and means providing a spiral guideway for automatically causing the aforesaid movement of said actuating element.

2. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a member adapted to control said valve, a second member adapted to rotate the blower element, afleXible actuating member, and means providing a spiral guideway for effecting a travel of said actuating member upon actuation of the same to cause the said actuating member to act successively on the said first mentioned members for causing the valve and blower element to function.

3. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a member loosely mounted on the blower element to actuate the valve, a second member fixed to said blower element for rotating the element and means automatically acting alternately on said members for causing the valve and blower element to be actuated.

4-. In a boiler cleaner, a blower element, a cleaning fluid supply line, a valve in the cleaning fluid supply line, said valve provided with a valve stem having a threaded portion, a pinion mounted on said valve stem having threads in engagement with said threaded portion and means carried by the blower element for rotating said pinion to unseat or seat the valve.

5. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a drum loosely mounted on the blower element and operatively associated with said valve, a second drum fixed to the blower element for rotating be same, and means on said drums for engaging an actuating member and for causing travel of said member during actuation of the same to cause the member to alternately rotate said drums.

6. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a drum loosely mounted on the blower element and operatively associated,

with said valve, a second drum fixed to the blower element for rotating the same, an actuating member, and means for compelling a travel of said member upon actuation of the same to cause the said member to successively engage the said drums.

7. In a boiler cleaner, the combination with a blower element and a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a drum loosely mounted on the blower element and operatively associated with said valve, a second drum fixed to the blower element for rotating the same, said drums being located adjacent each other and providing spiral grooves adapted to receive an actuating member and to advance the actuating member upon actuation of the same to cause the actuating member to act alternately upon said drums.

8. In a boiler cleaner, the combination with a blower elementand a source of cleaning fluid, of a valve controlling the supply of cleaning fluid from said source to the blower element, a drum loosely mounted on the;

for limiting the rotation of the second said drum.

In testimony whereof I afiix my signature.

NORMAN L. SNOIV. 

